TY  - JOUR
T1  - Low Complexity Early Termination Detector for Polar Code Belief Propagation Decoding
AU  - Lee, Chungsu 
AU  - Back, Sungyeol 
AU  - Park, Chansoo 
AU  - Oh, Wangrok 
JO  - The Journal of Korean Institute of Communications and Information Sciences
PY  - 2024
DA  - 2024/1/1
DO  - 10.7840/kics.2024.49.3.435
KW  - Polar code
KW  - Early termination belief propagation decoding
KW  - Complexity
AB  - Belief propagation (BP) decoding algorithm was proposed as a low latency decoding algorithm for polar codes. Unfortunately it requires relatively high decoding complexity compared to successive cancellation decoding. To remedy high complexity problem, early termination BP algorithm was proposed which requires additional complexity for stopping criteria test. In this paper, we propose low-complexity early termination detectors based on the characteristics of log-likelihood ratios generated within BP detectors. The proposed detectors offer identical performance with lower complexity compared to conventional detectors.